AGS Fitting Assortments contain a specific collection of fast moving fittings that should be kept on hand when working with automotive hydraulic braking systems. Assortments are packaged in shatter-resistant, see-through plastic trays. Locator labels on the inside lid make locating, selecting, and re-filling quick and easy. Master Cylinder Adapter Assortment – 18 SKU. A complete master cylinder adapter assortment for converting different sized port opening on master cylinders to standard braking systems. Adapters are included for converting from non-standard UNF imperial threads to standard 3/16", 1/4", 5/16" and 3/8" brake, fuel, and transmission systems. Also convert domestic systems to import systems and vice-versa.